static void pe_var_stop(pe_watcher *_ev) {
MAGIC **mgp;
MAGIC *mg;
pe_var *ev = (pe_var*) _ev;
SV *sv = SvRV(ev->variable);
if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv)) {
warn("Var unmagic'd already?");
return;
}
mgp = &SvMAGIC(sv);
while ((mg = *mgp)) {
if (mg->mg_type == 'U' && mg->mg_obj == (SV*)ev)
break;
mgp = &mg->mg_moremagic;
}
if(!mg) {
warn("Couldn't find var magic");
return;
}
*mgp = mg->mg_moremagic;
EvFree(8, mg->mg_ptr);
EvFree(11, mg);
}
static bool
sv_tainted(pTHX_ SV *sv)
{
if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
MAGIC *mg = mg_find(sv, 't');
if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv))
return TRUE;
}
return FALSE;
}
static struct wsgi_request *coroae_current_wsgi_req(void) {
MAGIC *mg;
SV *current = CORO_CURRENT;
for (mg = SvMAGIC (current); mg; mg = mg->mg_moremagic) {
if (mg->mg_type == PERL_MAGIC_ext + 1 && mg->mg_virtual == &uwsgi_coroae_vtbl) {
return (struct wsgi_request *) mg->mg_ptr;
}
}
uwsgi_log("[BUG] current_wsgi_req NOT FOUND !!!\n");
// TODO allow to survive api call error as in the python plugin
exit(1);
}
void
blizkost_get_bound_pmc(PerlInterpreter *my_perl,
blizkost_nexus **nexusr, SV *sv, PMC **targetr) {
MAGIC *mgp;
if (SvMAGICAL(sv))
for (mgp = SvMAGIC(sv); mgp; mgp = mgp->mg_moremagic)
if (mgp->mg_virtual == &blizkost_binder_vtbl)
goto gotmagic;
croak("blizkost: expected a bound PMC, got something else");
gotmagic:
*nexusr = (blizkost_nexus *)(mgp->mg_ptr);
*targetr = (PMC *)mgp->mg_obj;
}
static char *pe_var_start(pe_watcher *_ev, int repeat) {
STRLEN n_a;
struct ufuncs *ufp;
MAGIC **mgp;
MAGIC *mg;
pe_var *ev = (pe_var*) _ev;
SV *sv = ev->variable;
if (!_ev->callback)
return "without callback";
if (!sv || !SvOK(sv))
return "watching what?";
if (!ev->events)
return "without poll events specified";
sv = SvRV(sv);
if (SvREADONLY(sv))
return "cannot trace read-only variable";
(void)SvUPGRADE(sv, SVt_PVMG);
mgp = &SvMAGIC(sv);
while ((mg = *mgp)) {
mgp = &mg->mg_moremagic;
}
EvNew(11, mg, 1, MAGIC);
Zero(mg, 1, MAGIC);
mg->mg_type = 'U';
mg->mg_virtual = &PL_vtbl_uvar;
*mgp = mg;
EvNew(8, ufp, 1, struct ufuncs);
ufp->uf_val = ev->events & PE_R? tracevar_r : 0;
ufp->uf_set = ev->events & PE_W? tracevar_w : 0;
ufp->uf_index = PTR2IV(ev);
mg->mg_ptr = (char *) ufp;
mg->mg_obj = (SV*) ev;
mg_magical(sv);
if (!SvMAGICAL(sv))
return "mg_magical didn't";
return 0;
}
GV *
Perl_gv_fetchmeth(pTHX_ HV *stash, const char *name, STRLEN len, I32 level)
{
AV* av;
GV* topgv;
GV* gv;
GV** gvp;
CV* cv;
if (!stash)
return 0;
if ((level > 100) || (level < -100))
Perl_croak(aTHX_ "Recursive inheritance detected while looking for method '%s' in package '%s'",
name, HvNAME(stash));
DEBUG_o( Perl_deb(aTHX_ "Looking for method %s in package %s\n",name,HvNAME(stash)) );
gvp = (GV**)hv_fetch(stash, name, len, (level >= 0));
if (!gvp)
topgv = Nullgv;
else {
topgv = *gvp;
if (SvTYPE(topgv) != SVt_PVGV)
gv_init(topgv, stash, name, len, TRUE);
if ((cv = GvCV(topgv))) {
/* If genuine method or valid cache entry, use it */
if (!GvCVGEN(topgv) || GvCVGEN(topgv) == PL_sub_generation)
return topgv;
/* Stale cached entry: junk it */
SvREFCNT_dec(cv);
GvCV(topgv) = cv = Nullcv;
GvCVGEN(topgv) = 0;
}
else if (GvCVGEN(topgv) == PL_sub_generation)
return 0; /* cache indicates sub doesn't exist */
}
gvp = (GV**)hv_fetch(stash, "ISA", 3, FALSE);
av = (gvp && (gv = *gvp) && gv != (GV*)&PL_sv_undef) ? GvAV(gv) : Nullav;
/* create and re-create @.*::SUPER::ISA on demand */
if (!av || !SvMAGIC(av)) {
char* packname = HvNAME(stash);
STRLEN packlen = strlen(packname);
if (packlen >= 7 && strEQ(packname + packlen - 7, "::SUPER")) {
HV* basestash;
packlen -= 7;
basestash = gv_stashpvn(packname, packlen, TRUE);
gvp = (GV**)hv_fetch(basestash, "ISA", 3, FALSE);
if (gvp && (gv = *gvp) != (GV*)&PL_sv_undef && (av = GvAV(gv))) {
gvp = (GV**)hv_fetch(stash, "ISA", 3, TRUE);
if (!gvp || !(gv = *gvp))
Perl_croak(aTHX_ "Cannot create %s::ISA", HvNAME(stash));
if (SvTYPE(gv) != SVt_PVGV)
gv_init(gv, stash, "ISA", 3, TRUE);
SvREFCNT_dec(GvAV(gv));
GvAV(gv) = (AV*)SvREFCNT_inc(av);
}
}
}
if (av) {
SV** svp = AvARRAY(av);
/* NOTE: No support for tied ISA */
I32 items = AvFILLp(av) + 1;
while (items--) {
SV* sv = *svp++;
HV* basestash = gv_stashsv(sv, FALSE);
if (!basestash) {
if (ckWARN(WARN_MISC))
Perl_warner(aTHX_ WARN_MISC, "Can't locate package %s for @%s::ISA",
SvPVX(sv), HvNAME(stash));
continue;
}
gv = gv_fetchmeth(basestash, name, len,
(level >= 0) ? level + 1 : level - 1);
if (gv)
goto gotcha;
}
}
/* if at top level, try UNIVERSAL */
if (level == 0 || level == -1) {
HV* lastchance;
if ((lastchance = gv_stashpvn("UNIVERSAL", 9, FALSE))) {
if ((gv = gv_fetchmeth(lastchance, name, len,
(level >= 0) ? level + 1 : level - 1)))
{
gotcha:
/*
* Cache method in topgv if:
* 1. topgv has no synonyms (else inheritance crosses wires)
* 2. method isn't a stub (else AUTOLOAD fails spectacularly)
*/
if (topgv &&
GvREFCNT(topgv) == 1 &&
(cv = GvCV(gv)) &&
(CvROOT(cv) || CvXSUB(cv)))
{
if ((cv = GvCV(topgv)))
SvREFCNT_dec(cv);
GvCV(topgv) = (CV*)SvREFCNT_inc(GvCV(gv));
GvCVGEN(topgv) = PL_sub_generation;
}
return gv;
}
else if (topgv && GvREFCNT(topgv) == 1) {
/* cache the fact that the method is not defined */
GvCVGEN(topgv) = PL_sub_generation;
}
}
}
return 0;
}
static void modperl_filter_mg_set(pTHX_ SV *obj, modperl_filter_t *filter)
{
sv_magic(SvRV(obj), (SV *)NULL, PERL_MAGIC_ext, NULL, -1);
SvMAGIC(SvRV(obj))->mg_ptr = (char *)filter;
}
